a. Calculate the area of the entire figure
b. Calculate the area of the two black pieces
I'm horrible at these kinds of questions so help would be really appreciated <3
The grey half circle on the left has a radius of 12cm
Its area is (1/2)pi(12)^2 = 72pi cm^2 ≈ 226.2 cm^2 (1)
The remaining area is a rectangle with dimensions 12 * 24 = 288 cm^2 (2)
So the approximate total area is 288 + 226.2 = 514.2 cm^2
The approximate area of the two black pieces is (2) - (1) = 61.8 cm^2